CN207489226U - A kind of compound detecting alarm of combustion gas - Google Patents
A kind of compound detecting alarm of combustion gas Download PDFInfo
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- CN207489226U CN207489226U CN201721729606.4U CN201721729606U CN207489226U CN 207489226 U CN207489226 U CN 207489226U CN 201721729606 U CN201721729606 U CN 201721729606U CN 207489226 U CN207489226 U CN 207489226U
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Abstract
The utility model belongs to measuring instrument technical field, discloses a kind of compound detecting alarm of combustion gas, and the compound detecting alarm of combustion gas includes：For detecting the carbon monoxide transducer of carbonomonoxide concentration and methane concentration and methane transducer；The signal amplification module exported after being amplified for the electric signal to the carbon monoxide transducer and methane transducer output；For obtaining the control module of testing result after being analyzed and processed to the amplified electric signal；For showing the display module of the testing result；For carrying out the sound and light alarm module of sound-light alarm when the amplified electric signal is more than preset value；It is connect with the solenoid valve of the control module and gas pipeline, for the drive module that the output drive signal driving solenoid valve is closed when the amplified electric signal is more than preset value；And the power module for power supply.The utility model has the advantages that safe and convenient, small, at low cost, integrated level is high, stability is strong.
Description
Technical field
The utility model belongs to detecting instrument technical field more particularly to a kind of compound detecting alarm of combustion gas.
Background technology
Combustion gas is exactly fuel gas, and common combustion gas includes liquefied petroleum gas, artificial coal gas and natural gas.Combustion gas detection report
Alert device is exactly the detector for detecting gas concentration and alarming.In civil safety guard engineering, it is chiefly used in family's gas leakage report
It is alert, it is also widely used for the place that combustible gas leakage easily occurs for all kinds of oil plants, oil depot, chemical plant, liquefied gas station etc..Make
It is to tackle one of the important means of combustion gas with combustion gas detecting alarm.
However, existing combustion gas detecting alarm only single detection carbonomonoxide concentration, and excessively high in carbonomonoxide concentration
Shi Buneng actively takes appropriate measures to emergency, ensures the safety of user.
Therefore, existing combustion gas detecting alarm exists cannot detect many combustible gases simultaneously, and can not be actively to tight
The problem of anxious situation takes appropriate measures.
Utility model content
The purpose of this utility model is to provide a kind of compound detecting alarms of combustion gas, it is intended to solve existing combustion gas and visit
Many combustible gases cannot be detected simultaneously by surveying existing for alarm, and can not actively be asked what emergency took appropriate measures
Topic.
A kind of compound detecting alarm of combustion gas, including：For detecting the carbon monoxide of the carbonomonoxide concentration in air
Sensor and the methane transducer for detecting the methane concentration in air；It is passed with the carbon monoxide transducer and the methane
Sensor connects, and is exported after being amplified for the electric signal to the carbon monoxide transducer and methane transducer output
Signal amplification module；It is connect with the signal amplification module, for after being analyzed and processed to the amplified electric signal
To the control module of testing result；It is connect with the control module, for showing the display module of the testing result；With it is described
Control module connects, for carrying out the sound and light alarm module of sound-light alarm when the amplified electric signal is more than preset value；
It is connect with the solenoid valve of the control module and gas pipeline, for being exported when the amplified electric signal is more than preset value
Drive signal drives the drive module that the solenoid valve is closed；And with the signal amplification module, control module, described
Display module, the sound and light alarm module are connected with the drive module, for the power module of power supply；The drive module packet
It includes：The first transistor, second transistor, third transistor, the first diode, a relay, first resistor, second resistance and
Three resistance；The base stage of the first transistor connects the control module by the first resistor, the first transistor
Emitter is grounded, and the collector of the first transistor connects the base stage of the second transistor, institute by the second resistance
The collector for stating second transistor is connect by first diode with the solenoid valve, the emitter of the second transistor
Connect working power；The base stage of the third transistor connects the control module, the third crystal by the 3rd resistor
The emitter ground connection of pipe, the collector of the third transistor are connect with the relay.
Further, the model MQ1 of the carbon monoxide transducer.
Further, the model MC103 or MC101 of the methane transducer.
Further, the signal amplification module includes：Amplification chip, the 4th resistance, the 5th resistance and the 6th resistance；Institute
The first end for stating the 4th resistance is connect with the carbon monoxide transducer, and the second end of the 4th resistance connects the amplification core
Piece, the first end of the 5th resistance are connect with the methane transducer, and the second end of the 5th resistance connects the amplification
Chip, the amplification chip connect the control module by the 6th resistance.
Further, the sound and light alarm module includes：It is connect with the control module, in the amplified electricity
The audible alarm unit of audible alarm when signal is more than preset value；And connect with the control module, in the amplification
The luminous alarm unit of luminous alarm when electric signal afterwards is more than preset value.
Further, the audible alarm unit includes：It is connect with the control module, for receiving the control module
The pulse width modulating chip of the audio signal of output；It is connect with the pulse width modulating chip, for playing raising one's voice for voice alarm
Device.
Further, the luminous alarm unit includes：7th resistance and the first light emitting diode；Described first luminous two
The anode of pole pipe is connect by the 7th resistance with the control module, the minus earth of first light emitting diode.
Further, it further includes and is connect with the control module, be for detecting the compound detecting alarm of the combustion gas
The no self-test button in normal operating conditions.
Further, it further includes and is connect with the control module, is used to indicate at the compound detecting alarm of the combustion gas
In the failure indication module of malfunction.
Further, the failure indication module includes：8th resistance and the second light emitting diode；
The anode of second light emitting diode is connect by the 8th resistance with the control module, second hair
The minus earth of optical diode.
The compound detecting alarm of above-mentioned combustion gas has the features such as stability is high, and sensitivity drift is small.Its electricity that can work
It is pressed between AC110-230V, carbon monoxide and methane concentration in air can be detected simultaneously, when detecting in air an oxidation
When concentration of carbon or exceeded methane concentration, control module output drive signal causes the solenoid valve of drive module driving gas pipeline to close
Close, so as to ensure the safety of user, the compound detecting alarm of the combustion gas have safe and convenient, reliability it is high, it is small, into
The characteristics of this is low, integrated level is high, stability is strong, service life is long, is suitable for home dwelling area, building, hotel, apartment, work
Factory etc. carries out safety monitoring there are the place of fuel gas.
Description of the drawings
Fig. 1 is a kind of circuit module schematic diagram of the compound detecting alarm of combustion gas of the utility model.
Fig. 2 is a kind of carbon monoxide transducer, methane transducer and the letter of the compound detecting alarm of combustion gas shown in FIG. 1
The exemplary circuit schematic diagram of number amplification module.
Fig. 3 is a kind of control module of the compound detecting alarm of combustion gas shown in FIG. 1, drive module, luminous alarm list
The exemplary circuit schematic diagram of member and failure indication module.
Fig. 4 is a kind of exemplary circuit schematic diagram of the audible alarm unit of the compound detecting alarm of combustion gas shown in FIG. 1.
Fig. 5 is a kind of exemplary circuit schematic diagram of the power module of the compound detecting alarm of combustion gas shown in FIG. 1.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It please refers to Fig.1 to Fig. 5, the compound detecting alarm of combustion gas includes an oxidation in the preferred embodiment of the utility model
Carbon sensor 11, methane transducer 12, signal amplification module 13, control module 14, display module 15, sound and light alarm module 16,
Drive module 17 and power module 18.
Carbon monoxide transducer 11 is used to detect the carbonomonoxide concentration in air；Methane transducer 12 is used to detect air
In methane concentration；Signal amplification module 13 is connect with carbon monoxide transducer 11 and methane transducer 12, for being aoxidized to one
The electric signal that carbon sensor 11 and methane transducer 12 export is amplified；Control module 14 is connect with signal amplification module 13,
For obtaining testing result after being analyzed and processed to amplified electric signal；Display module 15 is connect with control module 14, is used
In display testing result；Sound and light alarm module 16 is connect with control module 14, is more than preset value for electric signal after amplification
Shi Jinhang sound-light alarms；Drive module 17 connect with the solenoid valve 20 of control module 14 and gas pipeline, for after amplification
Output drive signal drive magnetic valve 20 is closed when electric signal is more than preset value；Power module 18 and signal amplification module 13, control
Molding block 14, display module 15, sound and light alarm module 16 and drive module 17 connect, for powering.
In the utility model embodiment, the model MQ1 of carbon monoxide transducer, the model of methane transducer
MC103 or MC101.
It, can be high by the carbonomonoxide concentration in air and methane concentration using the above-mentioned compound detecting alarm of combustion gas
Precision power information, and detect that stability is high, sensitivity offset is small, can operating voltage between AC110-230V, work as detection
During to CO in Air concentration or exceeded methane concentration, control module output drive signal causes drive module to drive combustion gas
The solenoid valve of pipeline is closed, and the compound detecting alarm of the combustion gas is with safe and convenient, small, at low cost, integrated level is high, steady
The advantages of qualitative strong, service life is long, being suitable for home dwelling area, building, hotel, apartment, factory etc., there are fuel gas
Place, carry out safety monitoring.
As shown in Fig. 2, signal amplification module 13 includes amplification chip U1, the 4th resistance R4, the electricity of the 5th resistance R5 and the 6th
Hinder R6.The first end of 4th resistance R4 is connect with carbon monoxide transducer 11, the second end connection amplification chip of the 4th resistance R2
The first negative input end 1IN- of U1, the first end of the 5th resistance R5 are connect with methane transducer 12, the second end of the 5th resistance R5
The first output terminal 1OUT feet of connection the second positive input terminal of amplification chip 2IN+, amplification chip U1 draw with the 15th of control module 14
Foot P3.1 feet connect, the 16th pin that the second output terminal 2OUT feet of amplification chip pass through the 6th resistance R6 link control modules 14
P3.2 feet.
As shown in Figures 3 and 4, control module 14 is microcontroller U2, in the utility model embodiment, the model of microcontroller
CSU8RF3223, the 13rd pin P5.0 feet of control module 14 pass through the 9th resistance R9 and the 4th transistor Q4 and display module 15
Connection, for controlling the backlight illumination of display module 15, the 4th transistor Q4 is NPN transistor, and display module 15 is shown for LCD
Show device.
Sound and light alarm module 16 includes audible alarm unit 161 and luminous alarm unit 162,161 He of audible alarm unit
Luminous alarm unit 162 is connect with control module 14, and audible alarm unit 161 is more than default for electric signal after amplification
Audible alarm during value, luminous alarm when luminous alarm unit 162 is more than preset value for electric signal after amplification.
Wherein, as shown in figure 4, audible alarm unit 161 includes pulse width modulating chip U3 and loud speaker speaker；Pulsewidth
Modulation chip U3 is connect with control module 14, for receiving the audio signal of the output of control module 14, pulse width modulating chip U3's
6th pin, the 7th pin and the 8th pin are connect respectively with the 12nd pin, the 11st pin and the 10th pin of microcontroller；Loud speaker
Speaker is connected with pulse width modulating chip U3, and loud speaker speaker plays voice alarm under pulse width modulating chip U3 drivings,
In the utility model embodiment, the model TL276 of pulse width modulating chip U3.
As shown in figure 3, luminous alarm unit 162 includes the 7th resistance R7 and the first Light-emitting diode LED 1；7th resistance
The first end of R4 is connect with control module 14, the anode of the second end connecting luminous diode LED1 of the 7th resistance R7, and luminous two
The minus earth of pole pipe LED1.
In the utility model embodiment, the compound detecting alarm of combustion gas is further included to be connect with control module 14, is used for
Detect the self-test button (not shown) whether the compound detecting alarm of combustion gas is in normal operating conditions, one end of self-test button
It is connect with control module 14, the other end ground connection of self-test button.
In the utility model embodiment, the compound detecting alarm of combustion gas further includes failure indication module, indicating fault
Module is connect with control module 14, is used to indicate the compound detecting alarm of combustion gas and is in malfunction.Failure indication module packet
Include the 8th resistance R8 and the second Light-emitting diode LED 2；The anode of second Light-emitting diode LED 2 passes through the 8th resistance R8 and control
Module 14 connects, the minus earth of the second Light-emitting diode LED 2.When the compound detecting alarm internal sensor of combustion gas occurs
During failure, LCD display can be shown " FAIL ", while the second Light-emitting diode LED 2 shines.
In the utility model embodiment, drive module 17 includes：The first transistor Q1, second transistor Q2, third are brilliant
Body pipe Q3, the first diode D1, a relay K1, first resistor R1, second resistance R2 and 3rd resistor R3, wherein, first is brilliant
Body pipe Q1, second transistor Q2 and third transistor Q3 are NPN transistor.
By first resistor R1 link control modules 14, the emitter of the first transistor Q1 connects the base stage of the first transistor Q1
Ground, the collector of the first transistor Q1 pass through the base stage of second resistance R2 connection second transistors Q2, the collection of second transistor Q2
Electrode is connect by the first diode D1 with solenoid valve 20, when the carbonomonoxide concentration value in air or methane concentration value are higher than in advance
If during value, microcontroller U2 output drive signals control solenoid valve 20 is closed, so as to close valve of gas pipeline, second transistor Q2
Emitter connect working power；The base stage of third transistor Q3 passes through 3rd resistor R3 link control modules 14, third transistor
The emitter ground connection of Q3, the collector of third transistor Q3 are connect with relay K1, and relay K1 can be connected according to actual needs
Different equipment, according to the difference of connection, relay K1 exports normally opened or normally closed signal.In the utility model embodiment, after
The model HK4100F-DC5V-SHG of electric appliance K1.
As shown in figure 5, power module 18 include transformer T1, switching power source chip U4, photoelectrical coupler U5, it is controllable precisely
Source of stable pressure U6, decompression chip U7, the second diode D2, the tenth resistance R10 and the 11st resistance R11.Wherein, the tenth resistance R10
It is sampling resistor with the 11st resistance R11, the model GW6203 of switching power source chip U4, the model of photoelectrical coupler U5
PC817B, the model TL431 of controllable precisely source of stable pressure U6, photoelectrical coupler U5 and controllable precisely source of stable pressure U6 pass through for stablizing
Transformer T1 decompressions treated output voltage, passes through filter circuit filtering process again after the rectified bridge rectification of alternating current of input
It is vibrated afterwards by transformer T1, the voltage of output+12V, the voltage of+12V obtains the electricity of+10V after the decompression of the second diode
Pressure, the model MC34063 of decompression chip U7, for the voltage of+3V, power module will to be obtained after the processing of the voltage step-down of+10V
18 obtain different voltage values, the different location being linked into according to actual needs in circuit.
Illustrate the operation principle of the compound detecting alarm of the utility model combustion gas with reference to Fig. 1 to Fig. 5：
Carbon monoxide transducer 11 and methane transducer 12 detect carbonomonoxide concentration and methane concentration in air, and will
Signal amplification module 13 is input to after its power information, after the electric signal that signal amplification module 13 exports sensor is amplified
Microcontroller U2 is output to, microcontroller U2 analyzes and processes amplified electric signal, and passes through display module 15 and show,
When the carbonomonoxide concentration value in air or methane concentration value are higher than preset value, voice reporting is sent out by loud speaker speaker
It is alert, while the first Light-emitting diode LED 1 sends out blinking light, in the utility model embodiment, the first Light-emitting diode LED 1
Flashing red light light is sent out, while exhaust equipment can be started automatically, close valve of gas pipeline etc., ensures life and property
Safety.Whether self-test button is for detecting the compound detecting alarm of combustion gas in normal operating conditions, if the combustion gas is compound
Detecting alarm is in malfunction, then the second light emitting diode sends out blinking light, in the utility model embodiment, second
Light emitting diode sends out blinking yellow illumination light.Loud speaker speaker can also be used to play start-up prompting sound and low capacity prompt.When
The compound detecting alarm of combustion gas detects that carbon monoxide gas concentration reaches 100PPM or concentration of methane gas reaches 0.25%
During LEL (fuel gas meets the minimum concentration of open fire kind explosion, i.e. 2500PPM in air), alarm can an automatic prompt " oxygen
Change that carbon gas is exceeded, door and window please be open " or " note that combustion gas leaks " voice prompt, and ring warning signal, while LCD
Display starts to show instant concentration value；When carbon monoxide gas concentration is more than 1000PPM or concentration of methane gas is more than 2%
LEL (i.e. 20000PPM), when LCD display shows " HHH ", i.e., gas concentration is more than 999PPM.
It, can be high by the carbonomonoxide concentration in air and methane concentration using the above-mentioned compound detecting alarm of combustion gas
Precision power information, and detect that stability is high, sensitivity offset is small, can operating voltage between AC110-230V, work as detection
During to CO in Air concentration or exceeded methane concentration, control module output drive signal causes drive module to drive combustion gas
The solenoid valve of pipeline is closed, and the compound detecting alarm of the combustion gas is with safe and convenient, small, at low cost, integrated level is high, steady
The advantages of qualitative strong, service life is long, being suitable for home dwelling area, building, hotel, apartment, factory etc., there are fuel gas
Place, carry out safety monitoring.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement made within novel spirit and principle etc., should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of compound detecting alarm of combustion gas, which is characterized in that including：
For the carbon monoxide transducer for detecting the carbonomonoxide concentration in air and for detecting the methane concentration in air
Methane transducer；
It is connect with the carbon monoxide transducer and the methane transducer, for the carbon monoxide transducer and the first
The signal amplification module that the electric signal of alkane sensor output exports after being amplified；
It is connect with the signal amplification module, for obtaining testing result after being analyzed and processed to the amplified electric signal
Control module；
It is connect with the control module, for showing the display module of the testing result；
It is connect with the control module, for carrying out the acousto-optic of sound-light alarm when the amplified electric signal is more than preset value
Alarm module；
It is connect with the solenoid valve of the control module and gas pipeline, for when the amplified electric signal is more than preset value
Output drive signal drives the drive module that the solenoid valve is closed；And
With the signal amplification module, the control module, the display module, the sound and light alarm module and the driving mould
Block connects, for the power module of power supply；
The drive module includes：The first transistor, second transistor, third transistor, the first diode, a relay,
One resistance, second resistance and 3rd resistor；
The base stage of the first transistor connects the control module, the transmitting of the first transistor by the first resistor
Pole is grounded, and the collector of the first transistor connects the base stage of the second transistor by the second resistance, and described the
The collector of two-transistor is connect by first diode with the solenoid valve, and the emitter of the second transistor connects work
Make power supply；The base stage of the third transistor connects the control module by the 3rd resistor, the third transistor
Emitter is grounded, and the collector of the third transistor is connect with the relay.
2. the compound detecting alarm of combustion gas as described in claim 1, which is characterized in that the type of the carbon monoxide transducer
Number be MQ1.
3. the compound detecting alarm of combustion gas as described in claim 1, which is characterized in that the model of the methane transducer
MC103 or MC101.
4. the compound detecting alarm of combustion gas as described in claim 1, which is characterized in that the signal amplification module includes：
Amplification chip, the 4th resistance, the 5th resistance and the 6th resistance；
The first end of 4th resistance is connect with the carbon monoxide transducer, described in the second end connection of the 4th resistance
Amplification chip, the first end of the 5th resistance are connect with the methane transducer, the second end connection institute of the 5th resistance
Amplification chip is stated, the amplification chip connects the control module by the 6th resistance.
5. the compound detecting alarm of combustion gas as described in claim 1, which is characterized in that the sound and light alarm module includes：
It is connect with the control module, for the audible alarm of the audible alarm when the amplified electric signal is more than preset value
Unit；And
It is connect with the control module, for the luminous alarm of the luminous alarm when the amplified electric signal is more than preset value
Unit.
6. the compound detecting alarm of combustion gas as claimed in claim 5, which is characterized in that the audible alarm unit includes：
It is connect with the control module, for receiving the pulse width modulating chip of the audio signal of the control module output；With
It is connect with the pulse width modulating chip, for playing the loud speaker of voice alarm.
7. the compound detecting alarm of combustion gas as claimed in claim 5, which is characterized in that the luminous alarm unit includes：
7th resistance and the first light emitting diode；
The anode of first light emitting diode is connect by the 7th resistance with the control module, and described first luminous two
The minus earth of pole pipe.
8. the compound detecting alarm of combustion gas as described in claim 1, which is characterized in that further include and connect with the control module
It connects, for detecting the self-test the button whether compound detecting alarm of the combustion gas is in normal operating conditions.
9. the compound detecting alarm of combustion gas as described in claim 1, which is characterized in that further include and connect with the control module
It connects, is used to indicate the failure indication module that the compound detecting alarm of the combustion gas is in malfunction.
10. the compound detecting alarm of combustion gas as claimed in claim 9, which is characterized in that the failure indication module includes：
8th resistance and the second light emitting diode；
The anode of second light emitting diode is connect by the 8th resistance with the control module, and described second luminous two
The minus earth of pole pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721729606.4U CN207489226U (en) | 2017-12-12 | 2017-12-12 | A kind of compound detecting alarm of combustion gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721729606.4U CN207489226U (en) | 2017-12-12 | 2017-12-12 | A kind of compound detecting alarm of combustion gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207489226U true CN207489226U (en) | 2018-06-12 |
Family
ID=62458158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721729606.4U Active CN207489226U (en) | 2017-12-12 | 2017-12-12 | A kind of compound detecting alarm of combustion gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207489226U (en) |
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2017
- 2017-12-12 CN CN201721729606.4U patent/CN207489226U/en active Active
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